Family name יארקו (Jarkko 
, יארקו 
) , worldwide, is a rare last name. The last name יארקו is characteristic of Finland, where it is quite a rare surname, Latvia, where it is a rare surname, and Austria. Not in comparison with a country's population, it is commonest in Finland, the United States, and Austria. More prevalently, יארקו is the forename as well as the last name.